<!DOCTYPE html>
<html>

<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <title>Math </title>
  <script type="text/javascript">
    document.write(Math.ceil(3.3))
    document.write(Math.ceil(-0.1))
    document.write(Math.ceil(-9.9))
    document.write(Math.ceil(8.9))
  </script>
</head>

<body>
</body>

</html>